JP2017049360A - Forgery prevention label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a forgery prevention label which can be relatively inexpensively produced and in which presence/absence of forgery can be visually determined.SOLUTION: The forgery prevention label of the invention comprises a label base material and a display for indicating specific information printed on the label base material, in which, a part C21 of the display constitution element is printed in a format different from a format of the display constitution element C22 other than the part of the display constitution element. For example, a planar view shape of print dots D2 which express the part C21 of the display constitution element, and a planar view shape of print dots D1 which express the display constitution element C22 other than the part are different from each other.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a forgery-preventing label that can be identified as forged.

Conventionally, products in which labels printed with various designs are attached to articles have been distributed.
It is necessary for the manufacturer and seller of the product to prevent counterfeiting, quickly determine the presence or absence of counterfeiting, and collect counterfeit products.
In addition to imitation of the product itself, the counterfeit product is imitated with a label. Therefore, it is desired to provide a label that can visually determine the presence or absence of forgery.
Patent Document 1 discloses an anti-counterfeit structure including an infrared excitation infrared emission layer, a hologram layer, and a reflection layer in contact with the hologram layer, and the infrared excitation infrared emission layer emits excitation light in the infrared wavelength region. The emitted light when irradiated is emitted light in the infrared wavelength region, the surface of the reflective layer of the hologram layer is a relief hologram composed of fine irregularities, and the reflective layer is a metal reflective layer or a transparent reflective layer In addition, a label is disclosed in which the anti-counterfeit structure is visible as a hologram and the infrared excitation infrared emission layer is machine-readable.
However, the label having the structure as in Patent Document 1 has a problem that its manufacturing cost is high.

JP 2014-092645 A

  An object of the present invention is to provide an anti-counterfeit label that is relatively inexpensive and can visually determine the presence or absence of forgery.

  The anti-counterfeit label of the present invention has a label base material and a display indicating specific information printed on the label base material, and a part of the display component is a display other than the part. Printed in a format different from the component.

In a preferred anti-counterfeit label of the present invention, the display indicating the specific information is expressed by an innumerable set of printed dots, and a part of the display component and a display component other than the part Are represented by different printing dots.
In a preferred anti-counterfeit label according to the present invention, the planar shape of a printed dot representing a part of the display component is different from the planar shape of a printed dot representing a component of the display other than the part. ing.
In a preferred forgery-preventing label of the present invention, the display indicating the specific information is a barcode.

  The anti-counterfeit label of the present invention is relatively inexpensive and can visually detect the presence or absence of forgery. For this reason, the forgery prevention label with a high forgery prevention effect can be provided.

The perspective view of a heat-shrinkable cylindrical label. The top view of a heat-shrinkable cylindrical label. The top view which shows the surface of the gravure of the 1st example. The reference top view which shows the printing dot printed using the gravure plate of the 1st example. The reference top view which shows the surface of the gravure of the 2nd example. The reference top view which shows the printing dot printed using the gravure plate of the 2nd example. The reference top view which shows the surface of the gravure of the 3rd example. The reference top view which shows the printing dot printed using the gravure plate of the 3rd example. The reference top view which shows the surface of the gravure of the 4th example. The enlarged plan view of the barcode which is one of the displays which show specific information. The reference top view which shows the 1st example of the one part component other than a part of the component expressed with the printing dot of a different shape, and a part. The reference top view which shows the 2nd example of a part of component represented by the printing dot of a different shape, and components other than a part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present specification, a numerical range represented by “to” means a numerical range including numerical values before and after “to” as a lower limit value and an upper limit value.
It should be noted that the shape, size, relative ratio, and the like shown in each drawing are different from actual dimensions.

[First Embodiment]
1 is a perspective view of a cylindrical label in a state of being opened in a cylindrical shape, and FIG. 2 is a plan view of the cylindrical label in a state of being folded in a flat shape with the arrow portion in FIG. 1 as a fold. FIG.
1 and 2, the anti-counterfeit label of the present invention is, for example, a cylindrical type label.
This cylindrical label 1 has a cylindrical body in which the label substrate 2 is formed in a cylindrical shape, and displays A, B, and C indicating specific information printed on the cylindrical body.
Other configurations may be added to the cylindrical label as necessary. Other configurations include perforations and cut lines used when opening the cylindrical label, a surface protective layer that protects the outer surface, a sliding layer that improves the slipperiness of the inner surface, and the cylindrical label on the adherend. And an adhesive layer for partial adhesion.
The outer surface of a cylindrical label says the surface used as the outer side of a cylindrical body, and an inner surface says the surface used as the inner side of a cylindrical body.

In the present embodiment, a heat-shrinkable film is used as the label substrate 2. Here, in this specification, heat shrinkability refers to a property of shrinking in a predetermined direction at a heat shrink temperature (for example, 70 ° C. to 100 ° C.).
The cylindrical body is formed in a cylindrical shape by overlapping and bonding the first side end 2a and the second side end 2b of the heat-shrinkable film (label base material 2). Such a cylindrical body is thermally contracted in the circumferential direction, and the cylindrical label 1 of the present embodiment is a heat-shrinkable cylindrical label that contracts so as to reduce the diameter at the thermal contraction temperature.

  The material of the heat-shrinkable film is not particularly limited as long as it has heat-shrinkability at least in the horizontal direction (the horizontal direction is the circumferential direction when it is formed into a cylindrical shape, hereinafter the same). Examples of the heat-shrinkable film include polyester resins such as polyethylene terephthalate and polylactic acid; polyolefin resins such as polypropylene, polyethylene and cyclic olefin resins; polystyrene resins such as polystyrene and styrene-butadiene copolymers; A synthetic resin film made of one or a mixture of two or more selected from thermoplastic resins such as vinyl chloride resins can be used. A laminated film in which two or more kinds of films having heat shrinkability are laminated can also be used. Furthermore, a laminated film in which a functional layer such as a heat insulating layer or a barrier layer is laminated on a film having heat shrinkability can also be used. Examples of the heat insulating layer include a nonwoven fabric and a foamed resin sheet. Examples of the barrier layer include a metal foil such as an aluminum foil, a metal vapor deposition film, and the like. Among these, from the viewpoint of excellent shrinkage characteristics, it is preferable to use a polyester film or a laminated film containing this film as the heat-shrinkable film.

  A heat-shrinkable film can be obtained by forming into a film by a well-known manufacturing method and extending | stretching. The stretching treatment is usually performed by main stretching at a temperature of about 70 to 110 ° C. at a lateral direction of 2.0 to 8.0 times, preferably about 3.0 to 7.0 times. Further, in the longitudinal direction of the film (this longitudinal direction is a direction orthogonal to the lateral direction and is an axial direction when formed into a cylindrical shape, the same applies hereinafter), for example, a low magnification of 1.5 times or less A stretching process may be performed. The obtained film becomes a uniaxially stretched film or a biaxially stretched film stretched in a direction orthogonal to the main stretch direction. Although the thickness of a heat-shrinkable film is not specifically limited, Usually, it is about 10 micrometers-about 100 micrometers.

As the heat-shrinkable film, a film that can be thermally shrunk at least in the lateral direction at a heat-shrinking temperature (for example, 70 ° C. to 100 ° C.) is used. The heat-shrinkable film may be heat-shrinkable or heat-extensible in the longitudinal direction. For example, the heat shrinkable film preferably has a heat shrinkage rate in the transverse direction of 30% or more when heated to 85 ° C., more preferably 40% or more, and particularly preferably 50% or more. Further, when the heat-shrinkable film can be thermally shrunk or stretched in the machine direction, the heat shrinkage rate in the machine direction when heated to 85 ° C. is −3% to 15%, preferably Is 1% to 10%. In addition, the minus of thermal contraction rate means thermal elongation.
The heat shrinkage ratio when heated to 85 ° C. is the length of the heat shrinkable film before heating (original length) and the length of the film after the film is immersed in warm water of 85 ° C. for 10 seconds. It is the ratio of (length after immersion). The said heat shrinkage rate is calculated | required by substituting into a following formula.
Formula: heat shrinkage rate (%) = [{(original length in the transverse direction (or longitudinal direction) of the film) − (length after immersion in the transverse direction (or longitudinal direction) of the film)} / (of the film Original length in the horizontal direction (or vertical direction)]] × 100.

  The heat-shrinkable film may be transparent or opaque, but when a display is printed on the inner surface of the film, a transparent film is used in order to make the display visible from the outer surface side. The total light transmittance of the transparent film is, for example, 70% or more, preferably 80% or more, and more preferably 90% or more. The said total light transmittance says the value measured by the measuring method based on JISK7361 (the test method of the total light transmittance of a plastic-transparent material).

On the cylindrical body, displays A, B, and C indicating specific information are printed. Hereinafter, a display indicating specific information is referred to as a specific display. The cylindrical body may include a display other than the specific display. The indication such as the specific indication is printed on the inner surface or the outer surface of the cylindrical body or on the inner surface and the outer surface, but for the above reason, it is preferably printed on the inner surface of the cylindrical body. In addition, the specific display etc. which were printed on the inner surface of the cylindrical body can be visually recognized from the outer surface side of the cylindrical body through the label substrate 2.
The specific displays A, B, and C refer to displays that include some information. The specific display and the display other than the specific display have colors that can be visually identified, and include letters, figures, symbols, and the like including numbers.
When the specific display is a character, the specific display may be composed of one character or may be composed of a set of a plurality of characters. Similarly, when the specific display is a graphic or a symbol, the specific display may be configured by one graphic or symbol, or may be configured by a set of a plurality of graphic or symbols. The specific display may be configured by combining at least two types selected from characters, figures, and symbols.

Specifically, the following can be given as the specific display. However, the specific display included in the present invention is not limited to the following (1) to (6).
(1) Bar Code A bar code is a specific display configured by combining striped figures and characters such as numbers.
(2) Two-dimensional code The two-dimensional code is a specific display composed of figures including a mosaic pattern.
(3) Trademark A trade mark is a specific indication made up of one or more characters, figures or symbols, or a combination thereof.
(4) Description Description The description is a specific display composed of a plurality of characters. For example, “Please keep in the refrigerator after opening” corresponds to the explanation.
(5) Recycle mark (plastic mark)
A recycle mark (plastic mark) is a specific indication composed of a symbol or a combination of one or more characters and symbols.
(6) Picture A picture is a specific display composed of a graphic or a combination of one or more characters and a graphic. For example, a design imitating Mt. Fuji and a checkered pattern correspond to the pattern.
In FIG. 2, the cylindrical label 1 on which the pattern A, the description B, and the barcode C are printed is illustrated as the specific display.

Some of the specific display components are printed in a format different from the display components other than the part.
The specific display is composed of a plurality of components, a part of the components of the specific display indicates a part of the plurality of components, and a component of the display other than the part indicates the specific display. This refers to a component obtained by removing the part of the constituent elements from a plurality of constituent elements.
Hereinafter, a part of the components of the specific display may be referred to as a partial element, and the components of the specific display other than the part may be referred to as a remaining element.

For example, as shown in FIG. 2, the pattern A is roughly divided into a human figure and a snowboard figure, and the human figure includes each figure such as a hand, a leg, and a head as a component. Have. In this pattern A, for example, when a part element is a “human figure”, the remaining element is a “snowboard figure”. For example, when a part element is a “hand figure”, The remaining elements are “human figure and snowboard figure excluding hands”.
In addition, the description B is roughly divided into seven characters, and one character has a plurality of line drawings as components. In this description B, for example, when a partial element is the Chinese character “open”, the remaining element is “six characters other than open”, for example, the partial element is “gate constituting open”. In some cases, the remaining element is “7 characters excluding the gate”.

The bar code C is roughly divided into a striped pattern and 13 characters, and the striped pattern has a plurality of linear line drawings as components, and one character is a component. As a plurality of line drawings. In this barcode C, for example, when a partial element is a “striped pattern”, the remaining element is “13 characters”. For example, when a partial element is “1 character”, The remaining element is “12 characters excluding that one character and a striped pattern”, and further, for example, when a partial element is “a part of one character (for example, the lower half of the number 1)” The remaining elements are “13 characters and a striped pattern excluding a part thereof”.
The specific display may be printed with a single color or may be printed with a plurality of colors. When the specific display is printed in a single color, some elements and the remaining elements have the same color. For example, the barcode C is preferably printed in a single color such as black. The specific display is printed in a plurality of colors, for example, when some elements are printed with a single color and the remaining elements are printed with a single color different from that, or some elements And one of the remaining elements is printed in a plurality of colors and the other is printed in a different or the same single color, or a plurality of colors in which both the partial elements and the remaining elements are the same or different. The case where it is printed with is mentioned.

As described above, in the present invention, some elements are printed in a different format from the remaining elements.
“Printed in different formats” means printed so that the difference between the two can be visually recognized.
The printing method for specific display is not particularly limited, and includes plate-making printing method (printing method using a plate) and plateless printing method (printing method not using a plate). Examples of the plateless printing method include a digital printing method and an ink jet printing method.
In the present embodiment, the specific display is printed by the plate-making printing method, and the specific display includes a planar view shape of the print dots expressing some elements and a planar view shape of the print dots expressing the remaining elements. Is different.

When a specific display is printed by the plate-making printing method, the specific display is expressed as a lump of color such as a line drawing or a figure when viewed macroscopically, but microscopically, it is expressed from an innumerable set of printed dots. Has been. A printing dot is a portion to which ink is adhered, and is a minimum unit of adhered ink.
When the planar shape of the print dot is different, (A) when the print dot expressing the partial element and the print dot expressing the remaining element are viewed in a plan view, the shape itself is different. When the printed dots representing the partial elements and the printed dots representing the remaining elements are viewed in plan, they are similar in shape but differ in area. (C) The printed dots representing the partial elements and the remaining elements are represented. When the printed dots are viewed in a plan view, the shape and area are the same, but their arrangement (the arrangement can also be said to be the orientation) is different.

Examples of the plate-making printing method include an intaglio printing method, a relief printing method, a stencil printing method, and a lithographic printing method. The intaglio printing method typically includes a gravure printing method, the relief printing method includes a flexographic printing method, a relief printing method, and the stencil printing method includes a screen printing method. An example of the planographic method is an offset printing method.
The printing method of the specific display of the present invention is not particularly limited, but a gravure printing method or a flexographic printing method is preferable, and a gravure printing method is more preferable because a beautiful and high-quality display can be performed.

Intaglio printing methods such as gravure printing use intaglio.
An infinite number of cells (indents into which ink enters) are regularly formed on the surface of the intaglio. For example, in a 70-line intaglio, 70 virtual lines per inch are arranged in a cross shape, and a cell is formed in a rectangle surrounded by the virtual lines. In addition, the shape of the quadrangle surrounded by the imaginary line changes depending on the angle of the imaginary line, and the shape of the cell can also be changed. The cell depth is also set as appropriate.

FIG. 3 is a plan view schematically showing the state of the cells on the surface of the gravure plate having the number of lines: 100 lines, the angle: 0, and the cell depth: 30 μm. In order to make the portion where the cell is formed easy to understand, innumerable dots are added to the portion.
FIG. 4 is a plan view showing a state of printing using the gravure plate of FIG. 3 (a state where ink is attached).
By storing ink in the gravure plate cell S1 shown in FIG. 3 and adhering it to the label substrate, a printing dot D1 as shown in FIG. 4 is formed. Since the cell S1 has a rhombus shape in plan view with the left-right direction of the paper surface as the major axis, the printed dot D1 formed also has a rhombus shape in plan view with the left-right direction of the paper surface as the major axis as shown in FIG. It becomes. Moreover, since the ink put into the cell spreads when adhering to the label base material, the area of the printed dot D1 in plan view is usually larger than the area of the cell S1 in plan view. This area can be adjusted by the cell depth. When the cell depth is relatively large, the amount of ink per cell increases accordingly, so that the degree of ink spreading increases, and as a result, the printed dots have a large area. Become. On the other hand, when the cell depth is relatively small, the printed dots approach the area of the cell in plan view.

Next, FIG. 5 is a plan view schematically showing the state of the cells on the surface of the gravure plate having the number of lines: 70, the angle: 0, and the cell depth: 40 μm. In order to make the portion where the cell is formed easy to understand, innumerable dots are added to the portion.
FIG. 6 is a plan view showing a state printed using the gravure plate of FIG.
By storing ink in the cell S2 of the gravure plate shown in FIG. 5 and adhering it to the label substrate, printed dots D2 as shown in FIG. 6 are formed. As in the case of the 70-line gravure plate, the ink spreads greatly, and as shown in FIG. 6, the planar view shape of the printing dot D2 is larger than the planar view shape of the cell shown in FIG.
Comparing FIG. 4 and FIG. 6, the print dot D1 in FIG. 4 and the print dot D2 in FIG. 6 have the relationship (B). Further, the number of printing dots per unit area in FIG. 4 is larger than the number of printing dots per unit area in FIG.

Next, FIG. 7 is a plan view schematically showing the state of cells on the surface of a gravure plate having a number of lines: 70 lines, an angle: 2, and a cell depth: 40 μm. In order to make the portion where the cell is formed easy to understand, innumerable dots are added to the portion.
FIG. 8 is a plan view showing a state printed using the gravure plate of FIG.
By storing ink in the gravure plate cell S3 shown in FIG. 7 and adhering it to the label substrate, printed dots D3 as shown in FIG. 8 are formed. This gravure plate is different in angle from the gravure plate shown in FIG.
Comparing FIG. 4 and FIG. 8, the print dot D1 in FIG. 4 and the print dot D3 in FIG. 8 have the relationship (A).
Comparing FIG. 6 and FIG. 8, the print dot D2 in FIG. 6 and the print dot D3 in FIG. 8 have the relationship (C).
4, 6, and 8, the print dots D1, D2, and D3 are shown in a beautiful rhombus shape with straight edges, but in actuality, such an accurate rhombus shape is obtained. Note that it is not.

FIG. 9 is a plan view schematically showing the state of the cells on the surface of the gravure plate having 70 lines, angles of 0, and cell depth of 20 μm. In order to make the portion where the cell is formed easy to understand, innumerable dots are added to the portion.
When printing is performed using the gravure plate having the cell S4, printing dots having the same arrangement direction and small area as the printing dots D2 shown in FIG. 6 are formed (not shown).
Thus, by changing at least one selected from the number of lines, the angle and the depth of the gravure plate, printed dots having different shapes in plan view can be formed.

As an example of printing a part of the specific display components in a format different from the display components other than the part, a barcode will be described as an example.
As shown in FIG. 10, the barcode C has a striped pattern C1 composed of a plurality of linear line drawings and a plurality of characters C2 as components.
In one example, one character C21 constituting the barcode is printed in a format different from the other characters C22 and the striped pattern C1. In this case, the one character C21 corresponds to a partial element, which is the number “1” in FIG. The other character C22 and the striped pattern graphic C1 correspond to the remaining elements, and in FIG. 10, the number “987654398761” and the striped pattern graphic C1. For example, as shown in FIG. 11, one character C21 is printed with the gravure plate of FIG. 5, and the other character C22 and the striped pattern C1 are printed with the gravure plate shown in FIG. Accordingly, the innumerable print dots D2 expressing one character C21 which is a partial element are coarser than the print dots D1 expressing other characters C22 and the like which are remaining elements. Such a difference in printed dots can be easily identified by looking through a magnifier of about 3 to 10 times, for example.

  In another example, a part of one character C21 constituting the barcode is printed in a format different from the remaining part of the one character C21. For example, as shown in FIG. 12, a part of one character C21 is printed with the gravure plate of FIG. 5, and the remaining part of the character C21 is printed with the gravure plate shown in FIG. Therefore, innumerable print dots D2 expressing a part of one character C21 which is a partial element are coarser than print dots D1 expressing the remainder of the character C21 which is a remaining element. Similarly, the difference between the printed dots can be easily identified by looking through a magnifier of about 3 to 10 times, for example.

  In the example shown in FIGS. 10 and 11, the adjacent print dots D1 and D1 are separated from each other and have an ink-free region therebetween, but the adjacent print dots D1 and D1 may partially overlap. The adjacent printing dots D2 and D2 may also partially overlap in the same manner. Even if adjacent print dots D1, D1, D2, and D2 partially overlap, the shape and size of each dot D1 and D2 are different. In this case, the difference between the printed dots can be easily identified by confirming the outline that forms the numeral 1). Even when adjacent print dots D1, D1, D2, and D2 partially overlap as described above, the shapes and sizes of the dots D1 and D2 are different. Also good.

The heat-shrinkable cylindrical label (anti-counterfeit label) is externally fitted on an arbitrary adherend and is attached to the adherend by heating.
Arbitrary articles | goods can be used for a to-be-adhered body, For example, a container containing drinks, such as liquor, a container containing foodstuffs, a container containing cosmetics, a container containing a medicine, a dry battery, a cosmetic tool, a toy, a machine part etc. are mentioned.
Since the anti-counterfeit label of the present invention is printed in a format in which some elements are different from the remaining elements, even if a counterfeit label imitating a genuine label (the anti-counterfeit label of the present invention) appears, the different printing By visually checking the format, it can be determined that it is a counterfeit label.
For example, there is known a method for producing a forged label by reading a display of an authentic label with a scanner and printing based on the scanner data. However, the scanner cannot read even the difference in the shape of each printed dot. Therefore, for example, the numbers “1” and “1” as shown in FIG. 11 are printed as the same “1” in the forged label. For this reason, when the corresponding part of the forged label corresponding to the partial element and the remaining element of the genuine label is visually confirmed using a magnifying glass or the like, the shape of the printed dot is the same in the forged label. It can be determined that the label is a counterfeit label.
As in this embodiment, it is difficult to discriminate the difference between the printed dots with the naked eye. Therefore, it is conceivable that the counterfeiter imitates the specific display using the scanner or the like as described above without noticing the difference. In this respect, since the manufacturer / seller knows the difference between the printed dots of the authentic label, the authenticity can be easily determined by visually checking the portion through the magnifier. As described above, the difference in printed dots is difficult to distinguish with the naked eye, so that consumers do not feel uncomfortable with the specific display, and even if the specific display is a bar code, the bar code is mechanically There is no inconvenience in reading.

As described above, the forgery prevention label of the present invention can be discriminated when the forgery is counterfeited, so that the counterfeiter's intention to counterfeit can be attenuated and, consequently, forgery can be prevented.
Furthermore, in the present invention, since the printing formats of some elements and the remaining elements are made different, it can be carried out by the same printing method as before, and the manufacturing cost of the anti-counterfeit label is not significantly increased, and is relatively inexpensive. Anti-counterfeit label can be provided.

  The anti-counterfeit label of the present invention is not limited to the first embodiment, and can be variously changed within the scope intended by the present invention. Hereinafter, other embodiments of the present invention will be described. However, configurations different from the embodiments described above will be mainly described, and descriptions of similar configurations will be omitted, and terms and symbols may be used. .

[Second Embodiment]
In the said 1st Embodiment, although the heat-shrinkable cylindrical label is illustrated as a form of a forgery prevention label, the forgery prevention label of this invention is applicable to various forms.
For example, the anti-counterfeit label of the present invention may be in the form of a self-expandable cylindrical label, a tack label, a wound label, a glue label, an in-mold label, or the like. The self-stretching cylindrical label uses a self-stretching film as a label base material, and the label base material is formed into a cylindrical shape. The self-expandable cylindrical label is a cylindrical label that expands by applying a diameter expansion force and restores the original diameter by releasing the diameter expansion force. The tack label is a label in which an adhesive is provided on the back surface of the label base material and is attached to an adherend with the adhesive. The winding label is a label that is attached while being wound around the adherend. The glue label is a label attached to the adherend using an adhesive such as glue. An in-mold label is a label that is incorporated into a molded product during resin molding.

[Third Embodiment]
Further, in the first embodiment, as the case where some elements and the remaining elements are printed in different formats, print dots having different shapes in plan view are used. However, the present invention is not limited to this, and can be changed to various forms. .
For example, you may change as follows.
(A) Different fonts (typefaces) When the specific display includes characters, a part of the specific display including the characters and the remaining elements are printed in different fonts. For example, characters of some elements are printed in Gothic style, and characters of the remaining elements are printed in Mincho style.
(B) Different point (character size) When the specific display includes a character, a part of the specific display including the character and a remaining element are printed at different points. For example, characters of some elements are printed at 11 pt, and characters of the remaining elements are printed at 12 pt.
(C) Different in decoration When the specific display includes characters, a part of the specific display including the character and the remaining elements are printed with different character decorations. For example, the characters of some elements are printed in italics, and the characters of the remaining elements are printed in bold.
Alternatively, when the specific display includes characters, part of the characters are dared to be printed, or a meaningless point or another character is added to the part of the characters for printing. For example, a part of the number 0 normally expressed by a circular line is omitted, and printing is performed in a state that is not a circular line.
(D) Different gradations The printing gradations of some elements and the remaining elements are changed. For example, some elements are printed relatively thin and the remaining elements are printed dark. Also, only one of the partial elements and the remaining elements is printed so that the density changes stepwise (gradation printing).

(E) Change the color tone Change the color tone of some elements and the remaining elements. For example, when forming a purple specific display, some elements (or remaining elements) are printed in reddish purple, and the remaining elements (or some elements) are printed in normal purple. In this case, the ink for forming the specific display may be a process color or a special color ink. A process color is an ink that expresses a color by a combination of four basic colors (red, blue, yellow, and black), and a special color is an ink that has been color-mixed in advance.
For example, in the case where a purple specific display is formed by combining red dots and blue dots depending on the process color, the number of red dots of a partial element (or residual element) is larger than that of the residual element (or partial element). Or increase the size of red dots, or reduce the number of blue dots in some elements (or remaining elements) or make the size of blue dots smaller than the remaining elements (or partial elements) By this, some elements (or remaining elements) can be printed in a purple color that is more reddish than the remaining elements (or some elements).
In addition, in the case of forming a purple specific display with a spot color, a part element (or a remaining element) is printed using a spot color ink having a red purple color, and a remaining element (or a normal color ink having a purple color is used). Print some elements. When spot color ink is used, the partial element (or remaining element) is expressed by an infinite number of purple dots, and the remaining element (or partial element) is expressed by an infinite number of purple dots. .
Alternatively, either one of the partial elements or the remaining elements may be printed with the special color ink, and the other may be printed with the process color. For example, a purple partial element (or remaining element) is printed using a special color ink having a normal purple color, and a purple remaining element (or partial element) is printed by combining red dots and blue dots according to a process color. . In this case, macroscopically, it looks purple, but when viewed with a magnifying glass or the like, the difference in color tone between the two is obvious.
When some elements and the remaining elements are printed in various different formats as in the above various examples, and the counterfeiter prints a specific display without noticing the difference in the formats, the counterfeit is visually Can be discriminated.

1 Anti-counterfeit label (tubular label)
2 Label substrate C21 Part of display component C22 Display component other than part D1, D2, D3 Print dot

Claims (4)

A label base material, and a display showing specific information printed on the label base material,
A forgery prevention label in which a part of the display component is printed in a format different from the display component other than the part. The display indicating the specific information is represented by a collection of innumerable print dots,
The forgery prevention label according to claim 1, wherein a part of the display component and a display component other than the part are expressed by different printing dots.   The planar view shape of a printed dot expressing a part of the display component is different from the planar view shape of a printed dot representing a display component other than the part. Anti-counterfeit label.   The forgery prevention label according to claim 1, wherein the display indicating the specific information is a barcode.

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